I bought this bed in full-size for my summer home, which I rent.  I was looking for an extra sleeping space, but didn't want to spend the money on twin beds - which would've resulted in buying two of everything new (including linens) and would  have cost more than buying this trundle.  I used my existing mattress and will purchase a new twin mattress for the trundle.  I was able to put most of it together myself, but at some point needed and extra hand or two.  We put it together in less than 2 hours.  It is sturdy and stylish.  

Pros: sturdy, stylish.
Cons: directions could've been clearer.